Self-actuated shutdown-system development: system response-analysis status

Technical Report · Mon Sep 01 00:00:00 EDT 1980

OSTI ID:6347898

Deane, N A; Gregoire, K E; Tatsumi, J T

This report provides a preliminary evaluation of the SASS response time requirements for the safe shutdown earthquake (SSE), the flow coastdown (FCD), and two transient overpower (TOP) events. The driving functions for the SSE are a 20 cent step reactivity insertion with a +- 60 cent oscillation super imposed for 10 seconds combined with a flow coastdown defined by F/F/sub (0)/ = 1/(1+.2788t). The driving function of the FCD is just the relative flow curve defined above for the SSE. The TOP event driving function represents a control rod runout to a total of 60 cents at ramp rates of .76 cents/s and 6.1 cents/s. 3 figures.

• Research Organization: General Electric Co., Sunnyvale, CA (USA). Advanced Reactor Systems Dept.
• DOE Contract Number: AT03-76SF71032
• OSTI ID: 6347898
• Report Number(s): DOE/SF/71032-T13; ON: DE81025239; TRN: 81-012133
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
LMFBR TYPE REACTORS
REACTOR PROTECTION SYSTEMS
PERFORMANCE
EARTHQUAKES
LOSS OF FLOW
MELTING
NUCLEAR FUELS
REACTIVITY INSERTIONS
REACTOR SHUTDOWN
RESPONSE FUNCTIONS
TRANSIENT OVERPOWER ACCIDENTS
ACCIDENTS
BREEDER REACTORS
ENERGY SOURCES
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FUELS
FUNCTIONS
LIQUID METAL COOLED REACTORS
MATERIALS
PHASE TRANSFORMATIONS
REACTIVITY
REACTOR ACCIDENTS
REACTOR MATERIALS
REACTORS
SEISMIC EVENTS
SHUTDOWNS
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